Deuteronomy 1:16
"And I charged your judges at that time, saying, Hear the causes between your brethren, and judge righteously between every man and his brother, and the stranger that is with him."
Cross References (ranked by relevance)
Judge not according to the appearance, but judge righteous judgment.
Thou shalt neither vex a stranger, nor oppress him: for ye were strangers in the land of Egypt.
I charge thee before God, and the Lord Jesus Christ, and the elect angels, that thou observe these things without preferring one before another, doing nothing by partiality.
Ye shall have one manner of law, as well for the stranger, as for one of your own country: for I am the LORD your God.
And set him before Eleazar the priest, and before all the congregation; and give him a charge in their sight.
And Moses charged the people the same day, saying,
Thou shalt not oppress an hired servant that is poor and needy, whether he be of thy brethren, or of thy strangers that are in thy land within thy gates:
The God of Israel said, the Rock of Israel spake to me, He that ruleth over men must be just, ruling in the fear of God.
Charge them that are rich in this world, that they be not highminded, nor trust in uncertain riches, but in the living God, who giveth us richly all things to enjoy;
And the LORD said unto Moses, Behold, thy days approach that thou must die: call Joshua, and present yourselves in the tabernacle of the congregation, that I may give him a charge. And Moses and Joshua went, and presented themselves in the tabernacle of the congregation.
Do ye indeed speak righteousness, O congregation? do ye judge uprightly, O ye sons of men?
Ye shall do no unrighteousness in judgment: thou shalt not respect the person of the poor, nor honor the person of the mighty: but in righteousness shalt thou judge thy neighbour.
As ye know how we exhorted and comforted and charged every one of you, as a father doth his children,